JP2014109142A - Hanging metal fitting for ceiling substrate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hanging metal fitting for a ceiling substrate which never comes off even with impulsive force applied thereto when an earthquake occurs.SOLUTION: A hanging metal fitting for a ceiling substrate comprises: a hanging metal fitting body X1; and a reinforcing plate X2. The hanging metal fitting body X1 has: an insertion section 11, with a C-shaped cross section, which is fitted on C-shaped steel Y, having the C-shaped cross section with one side face open, by being moved in a direction perpendicular to the C-shaped steel Y to contact the same; and a pair of upper and lower bolt support sections 12 and 12 which are integrally extended from an upper and a lower edge portions of the insertion section 11 and allow an upper portion of a hanging bolt 3 hanging a ceiling substrate to be fixed thereto. The reinforcing plate X2 is: arranged between the pair of the upper and lower bolt support sections 12 and 12 of the hanging metal fitting body X1; and fixed to a side face of the C-shaped steel Y in a manner that externally covers the hanging bolt 3. The hanging metal fitting body X1 can be set only by fitting the insertion section 11 on the C-shaped steel Y from the direction perpendicular to the C-shaped steel Y. Also, a fixing state of the hanging bolt 3 is reinforced by existence of the reinforcing plate X2.

Description

  The present invention relates to a hanging bracket for a ceiling foundation, and more particularly to a hanging fitting used for hanging a ceiling foundation.

  As a hanging tool used for suspending a ceiling base, a hook used on a lip portion of a C-shaped steel has been frequently used. A support portion for attaching a suspension bolt is formed at the lower end of the suspension bracket. In this case, since the C-shaped steel has a lip portion, it is only necessary to hook the hook-shaped locking portion formed at the upper end of the hanging bracket on the lip portion, and the position for lowering the suspension bolt in the direction of action. There is also an advantage that it can be freely adjusted (for example, see Patent Document 1).

JP-A-60-105747.

  However, in the type in which the hook of the suspension metal fitting is hooked on the lip portion of the C-shaped steel, if the strength of the lip portion of the C-shaped steel is insufficient, there is a possibility that the lip portion opens. In addition, even when a large impact force is applied in the event of an earthquake or the like, there is a risk that the lip will open.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a ceiling base hanging metal fitting that does not come off even when an impact force is applied when an earthquake occurs.

  In the present invention, as a first means for solving the above-mentioned problem, a U-shaped cross section that is fitted so as to be in contact with a C-shaped steel having a U-shaped cross section whose one side surface is open from an orthogonal direction. A suspension metal fitting body including a fitting insertion portion and a pair of upper and lower bolt support portions to which an upper end portion of a suspension bolt that extends integrally from the upper and lower ends of the fitting insertion portion and suspends the ceiling base is attached, and the suspension A ceiling base suspension bracket is constituted by a reinforcing plate that is located between a pair of upper and lower bolt support portions in the bracket body and is attached to the side surface of the C-shaped steel so as to cover the suspension bolt from the outside.

  By configuring as described above, the suspension metal fitting body can be set only by fitting the insertion part from the direction orthogonal to the C-shaped steel having a U-shaped cross section whose one side surface is open. In addition, since the mounting state of the suspension bolt becomes strong due to the presence of the reinforcing plate, it will never come off even if an impact force is applied when an earthquake occurs.

  In the present invention, as a second means for solving the above-mentioned problem, in the ceiling base hanging metal fitting provided with the above-mentioned first means, opposite lip portions are provided above and below the open portion of the C-shaped steel. The reinforcing plate can be provided integrally with the lip portion, and the reinforcing plate can be attached to the lip portion. In such a configuration, the mounting structure of the reinforcing plate is simplified, which is advantageous in terms of cost.

  In the invention of the present application, as a third means for solving the above-described problem, in the ceiling base hanging bracket provided with the first or second means, the fitting insertion portion is provided at both upper and lower ends of the reinforcing plate. It is also possible to extend integrally the rigid reinforcing pieces attached to the upper and lower surfaces of the C-shaped steel on both sides of the C-shaped steel, and in this case, it is not necessary to form a lip portion in the open portion of the C-shaped steel, The structure is simplified, and the coupling structure between the suspension bolt and the C-shaped steel is further strengthened, and an earthquake-resistant structure that can withstand vibrations in the vertical and horizontal directions is obtained.

  In the invention of the present application, as a fourth means for solving the above-described problem, in the ceiling base hanging bracket provided with the first, second or third means, a ceiling base is provided at an upper end portion of the suspension bolt. The upper end portion of the diagonal reinforcing member having the lower end portion attached thereto can also be attached. In such a configuration, the earthquake resistance in the ceiling base is greatly improved.

  According to the first means of the present invention, a U-shaped fitting insertion portion fitted so as to come into contact with a C-shaped steel having a U-shaped cross-section with one side surface in an open state, A suspension metal fitting body provided with a pair of upper and lower bolt support portions that are integrally extended from both upper and lower ends of the insertion portion and to which an upper end portion of a suspension bolt that suspends the ceiling base is attached, and a pair of upper and lower bolts in the metal fitting body Since the ceiling base hanging bracket is constituted by the reinforcing plate attached to the side surface of the C-shaped steel so as to cover the suspension bolt from the outside between the support portions, a cross-sectional U-shape in which one side surface is opened. It is possible to set the hanger body simply by fitting the insertion part from the direction perpendicular to the C-shaped steel. An impact force is applied in a time such an effect that also eliminated can deviate absolutely.

  As in the second means of the present invention, in the ceiling base hanging metal fitting provided with the first means, the opposing lip portions are integrally projected above and below the open portion of the C-shaped steel, The reinforcing plate can be attached to the lip portion. In such a configuration, the reinforcing plate mounting structure is simplified, which is advantageous in terms of cost.

  As in the third means of the present invention, in the ceiling base hanging metal fitting provided with the first or second means, the C-shaped steel is formed on both upper and lower ends of the reinforcing plate on both sides of the fitting insertion portion. It is also possible to extend integrally the rigid reinforcement pieces attached to the upper and lower surfaces. In such a configuration, it is not necessary to form a lip portion in the open portion of the C-shaped steel, the structure is simplified, and the suspension is suspended. The joint structure between the bolt and the C-shaped steel will be further strengthened, and an earthquake resistant structure that can withstand vibrations from the top and bottom and from the left and right is obtained.

  As in the fourth means of the invention of the present application, in the ceiling base hanging metal fitting provided with the first, second or third means, the upper end of the suspension bolt is obliquely attached with the lower end on the ceiling base. The upper end portion of the reinforcing member can also be attached, and in such a case, the earthquake resistance in the ceiling base is greatly improved.

It is a perspective view which shows the assembly | attachment state of the hanging bracket for ceiling foundations concerning 1st Embodiment of this invention. It is a perspective view which shows the hanging bracket for ceiling foundations concerning the 1st Embodiment of this invention, (A) shows a hanging bracket main body, (B) has shown the reinforcement board. It is a perspective view which shows the ceiling foundation | substrate which is an example of use of the hanging bracket for ceiling foundation | substrate concerning 1st Embodiment of this invention. It is a perspective view which shows the assembly | attachment state of the suspension fitting for ceiling foundations concerning the 2nd Embodiment of this invention. It is a perspective view which shows the reinforcement board in the suspension fitting for ceiling foundations concerning the 2nd Embodiment of this invention. It is a perspective view which shows the assembly | attachment state of the suspension fitting for ceiling foundations concerning the 3rd Embodiment of this invention. It is a perspective view which shows the reinforcement board in the hanging bracket for ceiling foundations concerning the 3rd Embodiment of this invention. It is a perspective view which shows the assembly | attachment state of the suspension fitting for ceiling foundations concerning the 4th Embodiment of this invention.

  Hereinafter, several embodiments of the present invention will be described with reference to the accompanying drawings.

First Embodiment FIGS. 1 to 3 show a ceiling base hanging bracket according to a first embodiment of the present invention.

  The ceiling base hanging metal fitting X has a U-shaped fitting insertion section 11 which is fitted so as to be orthogonal to the C-shaped steel Y having a U-shaped section whose one side surface is open. And a pair of upper and lower bolt support portions 12, 12 that are horizontally extended integrally from both upper and lower ends of the fitting insertion portion 11 and to which the upper end portion of the suspension bolt 3 that suspends the ceiling base Z (see FIG. 3) is attached. An open side surface of the C-shaped steel Y (specifically, between the hanger body X1 provided and the pair of upper and lower bolt support portions 12, 12 in the metal body X1 so as to cover the hanger bolt 3 from the outside) C-shaped steel Y open part Y0) lip part Y1. And a reinforcing plate X2 attached to Y1.

  The suspension metal fitting body X1 is attached by screwing the back surface portion 13 connecting the fitting insertion portion 11 to the anti-hanging bolt side surface (that is, the anti-opening portion side surface) of the C-shaped steel Y. Yes. Reference numeral 14 denotes a screw hole formed in the back surface portion 13 and the reinforcing plate X2 of the fitting insertion portion 11, 15 denotes a screw for fixing the reinforcing plate X2 to the lip portions Y1 and Y1 in the C-shaped steel Y, and 16 denotes a suspension bolt 3 A nut 12a is attached to the bolt support 12 and an insertion hole through which the upper end of the suspension bolt 3 is inserted.

  As shown in FIG. 3, the ceiling base Z is made of a plurality of hollow metal rectangular tubes 1, 1. It is composed of a plurality of hollow metal rectangular cylinders 2,... Orthogonal to the rectangular cylinders 1, 1... The selected one is hung from the building structure by using the suspension bolts 3, 3. The lower end portion of the suspension bolt 3 is attached to a selected one of the metal rectangular tubes 1, 1. In the present embodiment, the selected one of the metal rectangular tubes 1, 1,... And the upper end of the selected one of the suspension bolts 3, 3,. The diagonal reinforcing members 20 are connected. Further, the lower end portion of the diagonal reinforcing member 20 is attached to a selected one of the metal square tubes 1, 1. Reference numeral 4 is a support member having a U-shaped cross section for supporting the end portions of the metal rectangular tubes 1, 1... 5 is a ceiling plate attached to the lower surface of the metal members 2, 2,. It is a channel orthogonal to the metal rectangular cylinders 1, 1.

  As shown in FIG. 1, the upper end portion of the diagonal reinforcing member 20 and the upper end portion of the suspension bolt 3 are connected to the upper end portion of the diagonal reinforcing member 20 with screws 22 a. Two plate-like members 22c and 22c fixed using bolts 22b and 22b so as to sandwich the suspension bolt 3 at the upper end portion of the suspension bolt 3 and the plate-like attachment means 22A attached using 22a. Are coupled via an upper fixing bracket 22 constituted by a coupling means 22B comprising: The attachment means 22A is clamped and fixed to one end side of the plate-like members 22c and 22c constituting the coupling means 22B using one of the bolts 22b and 22b. Reference numeral 22d is a nut screwed to the other end of the bolt 22b.

  A concave groove 17 for fitting the upper end of the suspension bolt 3 is formed at the center of the reinforcing plate X2 constituting the ceiling base suspension bracket X. If it does in this way, the adhesiveness of the reinforcement board X2 and the suspension bolt 3 can be ensured, and bond strength will improve further.

By configuring as described above, the hanging bracket X is set simply by fitting the fitting insertion portion 11 to the C-shaped steel Y having a U-shaped cross section whose one side surface is open so as to be orthogonal to the opposite opening portion side. In addition, since the mounting state of the suspension bolt 3 becomes strong due to the presence of the reinforcing plate X2, it will never come off even if a tensile force and a compressive force are applied shockfully when an earthquake occurs. And since the upper end part of the diagonal reinforcement member 20 by which the lower end part was attached to the ceiling base Z can also be attached to the upper end part of the suspension bolt 3, the earthquake resistance in the ceiling base Z will improve significantly. As shown in FIG. 3, the hanging bracket X is a “vine shelf” devised so that a person can get on the ceiling and have a load that suspends the ceiling base for maintenance of factory electricity or equipment. It is preferably used for a base set called.

Second Embodiment FIGS. 4 and 5 show a ceiling base hanging bracket according to a second embodiment of the present invention.

  In this case, on both upper and lower ends of the reinforcing plate X2 in the ceiling base hanging bracket X, rigidity reinforcing pieces 18, 18 and 19, 19 attached to both upper and lower surfaces of the C-shaped steel Y on both sides of the fitting insertion portion 11 are provided. It bends at right angles and extends integrally. The reinforcing plate X2 is fixed to the lip portions Y1 and Y1 of the C-shaped steel Y using screws 15 as in the first embodiment, and the rigidity reinforcing pieces 18, 18 and 19, 19 are used. Is fixed to the upper and lower surfaces of the C-shaped steel Y using screws 15. Screw holes 14, 14,... For screwing the screws 15 are formed in the rigidity reinforcing pieces 18, 19. If comprised in this way, the connection structure of the suspension bolt 3 and the C-shaped steel Y will be strengthened further, and the earthquake-proof structure which can endure the vibration from an up-down direction and the left-right direction will be obtained.

  Since other configurations and operational effects are the same as those in the first embodiment, description thereof is omitted to avoid duplication.

Third Embodiment FIGS. 6 and 7 show a ceiling base hanging bracket according to a third embodiment of the present invention.

In this case, lip portions are not formed at the upper and lower ends of the open portion Y0 of the C-shaped steel Y in the ceiling base hanging bracket according to the second embodiment. Therefore, the reinforcing plate X2 is formed by fixing the rigidity reinforcing pieces 18, 18, 19 and 19 integrally formed on the upper and lower ends of the reinforcing plate X2 to the upper and lower surfaces of the C-shaped steel Y using the screws 15. It is attached. If comprised in this way, since the joint strength of the suspension bolt 3 and the C-shaped steel Y becomes substantially the same as in the second embodiment, it is not necessary to form a lip portion, so the cost is reduced and the structure is simplified. Can be achieved. In this case, since there is no lip Y1 in the open part Y0 of the C-shaped steel Y, it is not necessary to form screw holes in the reinforcing plate X2 (see FIG. 7).
Other configurations and operational effects are the same as those in the second embodiment, and thus description thereof is omitted to avoid duplication.

Fourth Embodiment FIG. 8 shows a ceiling base hanging bracket according to a fourth embodiment of the present invention.

  In this case, the ceiling base hanging metal fitting X is fitted with a U-shaped cross-section that is fitted to a C-shaped steel Y having a U-shaped cross section whose one side surface is open from the side opposite to the open side. A pair of upper and lower bolt support parts 12, 12 that are horizontally extended integrally from the upper and lower ends of the part 11 and the fitting insertion part 11 and to which the upper end part of the suspension bolt 3 that suspends the ceiling base Z (see FIG. 3) is attached. And a side surface of the C-shaped steel Y on the side opposite to the open side (specifically, between the pair of upper and lower bolt support portions 12 and 12 of the metal fitting body X1 and covering the suspension bolt 3 from the outside) Is composed of a reinforcing plate X2 attached to the opposite side surface of the C-shaped steel Y).

  The suspension fitting body X1 has a back surface portion 13 connecting the fitting insertion portion 11 on the side surface opposite to the suspension bolt in the C-shaped steel Y (that is, the lip portions Y1, Y1 formed on the open portion side surface). It is attached by screwing.

  Also in the present embodiment, the rigid reinforcing pieces 18, 18, 19 and 19 are integrally formed at the upper and lower end portions of the reinforcing plate X2, and the rigid reinforcing pieces 18, 18 and 19, 19 are formed vertically on the C-shaped steel Y. In some cases, both sides may be fixed using screws 15.

  Since other configurations and operational effects are the same as those in the first embodiment, the description thereof is omitted.

  The invention of the present application is not limited to the above-described embodiments, and it goes without saying that the design can be changed as appropriate without departing from the scope of the invention.

3 is a suspension bolt 11 is an insertion portion 11a is one end 12 is a support portion 18 and 19 is a rigid reinforcement piece X is a suspension bracket X1 is a suspension bracket body X2 is a reinforcing plate Y is a C-shaped steel Y0 is an open portion Y1 is a lip portion Z Is the ceiling base

Claims (4)

  One side of the C-shaped steel with a U-shaped cross-section that is open, and a U-shaped cross-section fitting part that fits in a direction perpendicular to the C-shaped steel, and the upper and lower ends of the fitting insertion part extend integrally. A suspension metal fitting body provided with a pair of upper and lower bolt support portions to which an upper end portion of a suspension bolt that is installed and suspends the ceiling base is attached, and covers the suspension bolt from the outside between the pair of upper and lower bolt support portions in the metal fitting body Thus, the ceiling base suspension metal fitting is constituted by a reinforcing plate attached to the side surface of the C-shaped steel.   2. The ceiling underhang according to claim 1, wherein lip portions opposed to each other are integrally provided above and below the open portion of the C-shaped steel, and the reinforcing plate is attached to the lip portion. Hardware.   The rigid reinforcement piece attached to both the upper and lower surfaces of the C-shaped steel on both sides of the fitting insertion portion is integrally extended at both upper and lower ends of the reinforcing plate. The ceiling base hanging bracket described in the section.   The ceiling bracket suspension bracket according to any one of claims 1 to 3, wherein an upper end portion of an oblique reinforcing member having a lower end portion attached to a ceiling foundation is attached to an upper end portion of the suspension bolt.

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